ANTsR (version 0.4.0)

morphology: Morphological image operations

Description

Apply imaage morphological operations

Usage

morphology(input, operation, radius, type = "binary", value = 1,
  shape = "ball", radiusIsParametric = FALSE, thickness = 1, lines = 3,
  includeCenter = FALSE)

Arguments

input

input image

operation

operation to apply

• "close" Morpholgical closing

• "dilate" Morpholgical dilation

• "erode" Morpholgical erosion

• "open" Morpholgical opening

radius

radius of structuring element

type

type of morphology

• "binary" Binary operation on a single value

• "grayscale" Grayscale operations

value

value to operation on (type='binary' only)

shape

shape of the structuring element ( type='binary' only )

• "ball" spherical structuring element

• "box" box shaped structuring element

• "cross" cross shaped structuring element

• "annulus" annulus shaped structuring element

• "polygon" polygon structuring element

radiusIsParametric

used parametric radius boolean (shape='ball' and shape='annulus' only)

thickness

thickness (shape='annulus' only)

lines

number of lines in polygon (shape='polygon' only)

includeCenter

include center of annulus boolean (shape='annulus' only)

Value

antsImage is output

Examples

# NOT RUN {
fi<-antsImageRead( getANTsRData("r16") , 2 )
mask<-getMask( fi )
dilatedBall = morphology( mask, operation="dilate", radius=3, type="binary", shape="ball")
erodedBox = morphology( mask, operation="erode", radius=3, type="binary", shape="box")
openedAnnulus = morphology( mask, operation="open", radius=5, type="binary", shape="annulus", thickness=2)

# }